1 John 4:8-9

4:8 The person who does not love does not know God, because God is love. 4:9 By this the love of God is revealed in us: that God has sent his one and only Son into the world so that we may live through him.

1 John 3:1

3:1 (See what sort of love the Father has given to us: that we should be called God’s children – and indeed we are! For this reason the world does not know us: because it did not know him.